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131014445 = 561942331
BaseRepresentation
bin1111100111100…
…01111100101101
3100010112020000212
413303301330231
5232014430240
621000032205
73150414212
oct763617455
9303466025
10131014445
1167a55101
1237a62665
13211b2453
1413585b09
15b77e165
hex7cf1f2d

131014445 has 8 divisors (see below), whose sum is σ = 157475040. Its totient is φ = 104639760.

The previous prime is 131014441. The next prime is 131014483. The reversal of 131014445 is 544410131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131014445 - 22 = 131014441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131014445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131014441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18071 + ... + 24260.

It is an arithmetic number, because the mean of its divisors is an integer number (19684380).

Almost surely, 2131014445 is an apocalyptic number.

It is an amenable number.

131014445 is a deficient number, since it is larger than the sum of its proper divisors (26460595).

131014445 is an equidigital number, since it uses as much as digits as its factorization.

131014445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42955.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 131014445 is about 11446.1541576199. The cubic root of 131014445 is about 507.8939744524.

Adding to 131014445 its reverse (544410131), we get a palindrome (675424576).

The spelling of 131014445 in words is "one hundred thirty-one million, fourteen thousand, four hundred forty-five".

Divisors: 1 5 619 3095 42331 211655 26202889 131014445